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ADC3908CSSS 数据表(PDF) 27 Page - Texas Instruments |
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ADC3908CSSS 数据表(HTML) 27 Page - Texas Instruments |
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27 / 131 page ![]() 5.14 Typical Characteristics - 125MSPS (continued) Typical values at TA = 25 °C, ADC sampling rate = 125 MSPS, AIN = –1 dBFS, differential input, AVDD = IOVDD = 1.8 V, internal 1.2 V voltage reference, unless otherwise noted. Input Frequency (MHz) 0 10 20 30 40 50 60 -120 -100 -80 -60 -40 -20 0 SNR = 59.1 dBFS, SFDR = 66 dBc, Non-HD23 = 71 dBFS Figure 5-50. Single Tone FFT at FIN = 90 MHz Input Frequency (MHz) 0 10 20 30 40 50 60 -120 -100 -80 -60 -40 -20 0 AIN = -7dBFS/tone, IMD3 = -84 dBc Figure 5-51. Two Tone FFT at FIN = 10/12 MHz Input Frequency (MHz) 0 10 20 30 40 50 60 -120 -100 -80 -60 -40 -20 0 AIN = -7dBFS/tone, IMD3 = -97 dBc Figure 5-52. Two Tone FFT at FIN = 90/92 MHz Input Frequency (MHz) 0 10 20 30 40 50 60 70 80 90 100 110 120 60 60 60.1 64 60.2 68 60.3 72 60.4 76 60.5 80 60.6 84 60.7 88 60.8 92 60.9 96 61 100 SNR, ext REF SFDR, ext REF Non HD23, ext REF SNR, int REF SFDR, int REF Non-HD23, int REF Figure 5-53. AC Performance vs Input Frequency Input Amplitude (dBFS) -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 58 10 58.5 20 59 30 59.5 40 60 50 60.5 60 61 70 61.5 80 62 90 62.5 100 63 110 SNR SFDR Non HD23 FIN = 5 MHz Figure 5-54. AC Performance vs Input Amplitude FIN = 10 MHz Figure 5-55. AC Performance vs Sampling Rate www.ti.com ADC3910D125 SBASAD1 – DECEMBER 2023 Copyright © 2023 Texas Instruments Incorporated Submit Document Feedback 27 Product Folder Links: ADC3910D125 |
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